This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU63X400SFB, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.
Airtac SU63-100 Standard Cylinder SU63X400SFB
The AirTAC Airtac SU63-100 Standard Cylinder SU63X400SFB is a double-acting profile-type standard cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU63X400SFB, which matches its bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAU63X400SFB
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SU63-100 Standard Cylinder SU63X400SFB
The AirTAC SU63X400SFB is a discontinued double-acting profile-type cylinder with a 63mm bore and 400mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa, operating via a 3/8" port. AirTAC replaced this legacy unit with the SAU63X400SFB, a direct upgrade retaining the exact body profile, force, stroke, and SC-series FB mounting interface.
The SAU replacement modernizes the sensor system, switching from the old CS1-B/DS1-B switches to current CMSG/DMSG/EMSG sensors, and introduces the SAUF built-in 4M valve option the SU line lacked. Remember the air cushion only decelerates; it does not hold the load without live air.
Airtac SU63-100 Standard Cylinder SU63X400SFB Technical Specifications
| Model | Airtac SU63-100 Standard Cylinder SU63X400SFB |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU63X400SFB |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU63X400SFB carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAU63X400SFB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SU63-100 Standard Cylinder SU63X400SFB
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Where the Airtac SU63-100 Standard Cylinder SU63X400SFB Is Used
Pallet Diversion
Pushes heavy pallets laterally across a transfer section using the 1559N push force at 0.5MPa, with the 400mm stroke clearing the belt width.
Component Ejection
Ejects machined metal parts from a fixture, utilizing the adjustable 21mm cushions to decelerate the payload smoothly at stroke end.
Replacing the Airtac SU63-100 Standard Cylinder SU63X400SFB with the SAU63X400SFB
To replace this SU63X400SFB, order the SAU63X400SFB, confirming the 63mm bore, 400mm stroke, 3/8" port, M16x1.5 rod thread, and FB mounting. Because this SKU includes the -S magnet, you must upgrade your sensors from legacy CS1-B/DS1-B to the modern CMSG/DMSG/EMSG family. If sizing alternatives, a 50mm bore yields 982N push while an 80mm bore yields 2513N at 0.5MPa. For the 400mm stroke, use external guides to prevent rod bending under side loads. The cushion only decelerates; use an external rod lock or pilot-operated check valve to hold loads. The SAUF variant adds a built-in valve if needed.
Replacement checklist
- ✓ Same bore / stroke → SAU63X400SFB
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S): sensor family CS1-B → CMSG
- ✓ Mounting reused (FA/FB/CA/CB/LB)
- ✓ Need a built-in valve? → SAUF
Airtac SU63-100 Standard Cylinder SU63X400SFB FAQ
Yes, the SU63X400SFB is discontinued. The direct replacement is the SAU63X400SFB. It shares the same 63mm bore, 400mm stroke, 3/8" port, output force, and FB mounting, so it drops right into your existing SC-series setup.
The 63mm bore provides 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, and a theoretical max of 318kgf at 1.0MPa. Because this model has the -S magnet, it used legacy CS1-B/DS1-B switches; the SAU replacement requires the current CMSG/DMSG/EMSG sensor family.
Related AirTAC SAU Cylinders
Request a Quote for the SAU63X400SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAU63X400SFB replacement — usually within 7-8 hours.